1 of Billionaire Investor Bill Ackman's Newest Positions Is Down Roughly 21% This Year. A Wall Street Analyst Thinks Another 21% Decline Is Coming. Should Investors Sell the Stock?

In the second quarter of the year, Bill Ackman's Pershing Square Inc. put new money it had raised earlier this year to work by initiating a new position in the streaming giant Netflix (NASDAQ:NFLX). At the end of the second quarter, the position was valued at over $934 million, consuming 4.8% of Pershing's $19.47 billion of assets at the time. Missed AI's "Act 1"? Act 2 Could Be 15x Bigger. Most investors think they missed the AI boat because they didn't buy Nvidia in 2005. But according to our analysts, we're only at the end of "Act 1"—the R&D phase. "Act 2" is the global rollout. Continue » It's been tough sledding for Netflix, with shares down over 40% in the past year.